This is a Left Hand Threaded Bump Knob Retainer For Homelite/Ryobi Straight Shaft String Trimmer

Part # 308042001. It was an extra unused part that fits a Homelite Ryobi MTD Straight Shaft String Trimmer.

It states right on it, 308042001 Order PA01271.

Please note: This Bump Knob is For a Homelite or Ryobi Straight Shaft String Trimmer only. Please confirm your String Trimmer is Straight Shaft, and Original Bump Knob is Red Before Purchase.

If your String Timmer is Curved and Original Bump Konb is Black, please do not buy.

Thank you!